cedricpim

#!/bin/bash

# From https://github.com/ginatrapani/todo.txt-cli/tree/addons/.todo.actions.d/adda

action=$1
shift

[ "$action" = "usage" ] && {
  echo "  Add and prioritize A:"
  curcmd=`basename $0`

cedricpim

# /usr/lib/systemd/system/mailcatcher.service
[Unit]
Description=MailCatcher Service
After=network.service vagrant.mount

[Service]
Type=simple
ExecStart=/home/vagrant/.rbenv/shims/mailcatcher --ip 0.0.0.0 --foreground
ExecReload=/bin/kill -HUP $MAINPID
KillMode=process

cedricpim

# Install dependencies for PhantomJS
sudo apt-get -y install build-essential g++ flex bison gperf ruby perl \
  libsqlite3-dev libfontconfig1-dev libicu-dev libfreetype6 libssl-dev \
  libpng-dev libjpeg-dev python libx11-dev libxext-dev

# Directory to install PhantomJS
cd /usr/local/share
sudo git clone git://github.com/ariya/phantomjs.git
cd phantomjs
sudo git checkout 2.0

cedricpim

require 'benchmark'
require 'ostruct'
require 'memory_profiler'

i = 100000

User = Struct.new(:name, :age)

USER = "User".freeze
AGE = 21

cedricpim

brew unlink python
brew install https://raw.githubusercontent.com/Homebrew/homebrew/1681e193e4d91c9620c4901efd4458d9b6fcda8e/Library/Formula/python.rb
brew switch python 2.7.9

cedricpim

# Based on https://gist.github.com/fernandoaleman/5083680

# Start the old vagrant
$ vagrant init ubuntu_saucy
$ vagrant up
 
# You should see a message like:
#  [default] The guest additions on this VM do not match the install version of
#  VirtualBox! This may cause things such as forwarded ports, shared
#  folders, and more to not work properly. If any of those things fail on

cedricpim

The introduction to Reactive Programming you've been missing

(by @andrestaltz)

So you're curious in learning this new thing called (Functional) Reactive Programming (FRP).

Learning it is hard, even harder by the lack of good material. When I started, I tried looking for tutorials. I found only a handful of practical guides, but they just scratched the surface and never tackled the challenge of building the whole architecture around it. Library documentations often don't help when you're trying to understand some function. I mean, honestly, look at this:

Rx.Observable.prototype.flatMapLatest(selector, [thisArg])

Projects each element of an observable sequence into a new sequence of observable sequences by incorporating the element's index and then transforms an observable sequence of observable sequences into an observable sequence producing values only from the most recent observable sequence.

cedricpim

Latency numbers every programmer should know

L1 cache reference ......................... 0.5 ns
Branch mispredict ............................ 5 ns                     on recent CPU
L2 cache reference ........................... 7 ns                     14x L1 cache
Mutex lock/unlock ........................... 25 ns
Main memory reference ...................... 100 ns                     20x L2 cache, 200x L1 cache
Compress 1K bytes with Zippy ............. 3,000 ns  =   3 µs
Send 2K bytes over 1 Gbps network ....... 20,000 ns  =  20 µs
SSD random read ........................ 150,000 ns  = 150 µs

Read 1 MB sequentially from memory ..... 250,000 ns = 250 µs 4X memory

cedricpim

#!/bin/sh

# Some things taken from here
# https://github.com/mathiasbynens/dotfiles/blob/master/.osx

# Set the colours you can use
black='\033[0;30m'
white='\033[0;37m'
red='\033[0;31m'
green='\033[0;32m'